CVE-2022-50898: KALYAN02 Nanocms

High severity, CVSS 8.8. EPSS: 1.3% chance of exploitation in the next 30 days.

NanoCMS 0.4 contains an authenticated file upload vulnerability that allows remote code execution through unvalidated page content creation. Authenticated attackers can upload PHP files with arbitrary code to the server's pages directory by exploiting the page creation mechanism without proper input sanitization.

Affected products

• KALYAN02 Nanocms: version 0.4 only

Published 2026-01-13. Last modified 2026-06-17.